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    SIGNALING PRESENCE OF INTER AND INTRA SYNTAX ELEMENTS FOR A PICTURE
    64.
    发明公开
    SIGNALING PRESENCE OF INTER AND INTRA SYNTAX ELEMENTS FOR A PICTURE 审中-公开

    公开(公告)号：US20230283785A1

    公开(公告)日：2023-09-07

    申请号：US18316884

    申请日：2023-05-12

    Applicant: TENCENT AMERICA LLC

    Inventor： Xiaozhong XU ,  Byeongdoo CHOI ,  Shan LIU

    IPC: H04N19/159 ,  H04N19/44 ,  H04N19/174 ,  H04N19/70 ,  H04N19/119 ,  H04N19/172

    CPC classification number: H04N19/159 ,  H04N19/119 ,  H04N19/172 ,  H04N19/174 ,  H04N19/44 ,  H04N19/70

    Abstract: Aspects of the disclosure provide a method and an apparatus including processing circuitry for video decoding. The processing circuitry receives, from a coded video bitstream, coding information for a current picture. At least one flag in the coding information indicates one or more allowable coding types for sub-partitions in the current picture. The one or more allowable coding types include at least one of intra coding and inter coding for the sub-partitions. The processing circuitry determines, based on the at least one flag, whether to decode intra syntax elements used only for coding intra sub-partitions and whether to decode inter syntax elements used only for coding inter sub-partitions. The processing circuitry decodes the intra syntax elements in the coding information when the intra syntax elements are determined to be decoded and decodes the inter syntax elements in the coding information when the inter syntax elements are determined to be decoded.

    SUBPICTURE LAYOUT AND PARTIAL OUTPUT WITH LAYERS
    66.
    发明申请
    SUBPICTURE LAYOUT AND PARTIAL OUTPUT WITH LAYERS 有权

    公开(公告)号：US20230135436A1

    公开(公告)日：2023-05-04

    申请号：US18089408

    申请日：2022-12-27

    Applicant: TENCENT AMERICA LLC

    Inventor： Byeongdoo CHOI ,  Stephan WENGER ,  Shan LIU

    IPC: H04N19/70 ,  H04N19/172 ,  H04N19/187 ,  H04N19/119 ,  H04N19/174

    Abstract: There is included a method and apparatus comprising computer code configured to cause a processor or processors to perform obtaining video data, parsing a video parameter set (VPS) syntax of the video data, determining whether a value of a syntax element of the VPS syntax indicates a picture order count (POC) value of an access unit (AU) of the video data, and setting at least one of a plurality of pictures, slices, and tiles of the video data to the AU based on the value of the syntax element.

    METHOD FOR ALIGNMENT ACROSS LAYERS IN CODED VIDEO STREAM
    67.
    发明申请
    METHOD FOR ALIGNMENT ACROSS LAYERS IN CODED VIDEO STREAM 有权

    公开(公告)号：US20230132814A1

    公开(公告)日：2023-05-04

    申请号：US18072326

    申请日：2022-11-30

    Applicant: TENCENT AMERICA LLC

    Inventor： Byeongdoo CHOI ,  Shan Liu ,  Stephan Wenger

    IPC: H04N19/167 ,  H04N19/103 ,  H04N19/82 ,  H04N19/159 ,  H04N19/177 ,  H04N19/117

    Abstract: A method, computer program, and computer system is provided for aligning across layers in a coded video stream. A video bitstream having multiple layers is decoded. One or more subpicture regions are identified from among the multiple layers of the decoded video bitstream, the subpicture regions including a background region and one or more foreground subpicture regions. An enhanced subpicture is decoded and displayed based on a determination that a foreground subpicture region is selected. The background region is decoded and displayed based on a determination that a foreground subpicture region was not selected.

    TECHNIQUES FOR CONSTRAINT FLAG SIGNALING FOR RANGE EXTENSION WITH RESIDUAL RICE CODING EXTENSION
    68.
    发明申请
    TECHNIQUES FOR CONSTRAINT FLAG SIGNALING FOR RANGE EXTENSION WITH RESIDUAL RICE CODING EXTENSION 有权

    公开(公告)号：US20230118451A1

    公开(公告)日：2023-04-20

    申请号：US17710778

    申请日：2022-03-31

    Applicant: Tencent America LLC

    Inventor： Byeongdoo CHOI ,  Shan LIU ,  Stephan WENGER

    IPC: H04N19/70

    Abstract: Aspects of the disclosure provide methods and apparatuses for video data processing. In some examples, an apparatus for video data processing includes processing circuitry. For example, the processing circuitry determines a first syntax element for coding control in a first scope of coded video data in a bitstream. The first syntax element is associated with a second coding tool that is alternative to a first coding tool for Rice parameter derivation in a residual coding. In response to the first syntax element being a first value indicative of disabling of the second coding tool in the first scope, the processing circuitry decodes the first scope of coded video data that includes one or more second scopes of coded video data without invoking the second coding tool.

    SIGNALING OUTPUT PICTURE SIZE FOR REFERENCE PICTURE RESAMPLING
    69.
    发明申请
    SIGNALING OUTPUT PICTURE SIZE FOR REFERENCE PICTURE RESAMPLING 有权

    公开(公告)号：US20230116623A1

    公开(公告)日：2023-04-13

    申请号：US17977903

    申请日：2022-10-31

    Applicant: TENCENT AMERICA LLC

    Inventor： Byeongdoo CHOI ,  Stephan WENGER ,  Shan LIU

    IPC: H04N19/132 ,  H04N19/172 ,  H04N19/146 ,  H04N19/189

    Abstract: There is included a method and apparatus comprising computer code configured to cause a processor or processors to perform acquiring an input bitstream comprising metadata and video data, decoding the video data, determining whether the metadata comprises at least one flag signaling at least one component of a picture size of at least one picture of the video data, and signaling, in a case where it is determined that the metadata comprises the at least one flag, a display device to display the at least one picture from the video data according to the at least one flag.

    TECHNIQUES FOR CONSTRAINT FLAG SIGNALING FOR RANGE EXTENSION WITH RICE CODING
    70.
    发明申请
    TECHNIQUES FOR CONSTRAINT FLAG SIGNALING FOR RANGE EXTENSION WITH RICE CODING 有权

    公开(公告)号：US20230097659A1

    公开(公告)日：2023-03-30

    申请号：US17710794

    申请日：2022-03-31

    Applicant: Tencent America LLC

    Inventor： Byeongdoo CHOI ,  Shan LIU ,  Stephan WENGER

    IPC: H04N19/70 ,  H04N19/174 ,  H04N19/60 ,  H04N19/12

    Abstract: Aspects of the disclosure provide methods and apparatuses for video data processing. In some examples, an apparatus for video data processing includes processing circuitry. For example, the processing circuitry determines a first syntax element for coding control in a first scope of coded video data in a bitstream. The first syntax element is associated with a coding tool of a slice based Rice coding for a residual coding in a transform skip mode. The coding tool provides a Rice parameter at a slice level for the residual coding in the transform skip mode. In response to the first syntax element being a first value indicative of disabling of the coding tool in the first scope, the processing circuitry decodes the first scope of coded video data that includes one or more second scopes of coded video data without invoking the coding tool.

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